Dual-head ceiling fan



FIG. 1 is a bottom perspective view of a dual-head ceiling fan, showing the new design;

FIG. 2 is a top perspective view;

FIG. 3 is an elevation view with the opposite elevation being a mirror image;

FIG. 4 is an end view with the opposite end being a mirror image;

FIG. 5 is a top view; and,

FIG. 6 is a bottom view.

The broken line showings of FIGS. 1-6 are for the purpose of illustrating unclaimed portions of the dual-head ceiling fan and form no part of the claimed design. 

The ornamental design for a dual-head ceiling fan, as shown and described. 